The solid oxide of generic metal m is added to 75 ml of water and reacts to produce a metal hydroxide solution that is 0.40 m in the resulting compound. the metal hydroxide solution then reacts with all of the 27 ml of 1.1 m hcl to form water and the metal salt. how many valence electrons must m have?

The number of valence electrons that M must have is 1.

Explanation:

The chemical equation for the reaction of metal oxide with water follows:

The reaction of metal hydroxide with hydrochloric acid follows:

To calculate the number of moles for given molarity, we use the equation:

    .....(1)

Molarity of metal hydroxide solution = 0.40 M

Volume of solution = 75 mL

Putting values in equation 1, we get:

Molarity of HCl = 1.1 M

Volume of solution = 27 mL

Putting values in equation 1, we get:

To calculate the value of 'x', we divide the number of moles of HCl by number of moles of metal hydroxide, we get:

Hence, the number of valence electrons that M must have is 1.

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